Ethereum GPU mining?

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Madpacket

Platinum Member
Nov 15, 2005
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326
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I'm using 8192 and 256 atm.

Download the below tool. Go to the OpenCL tab. It will tell you the maximum values your card supports. 2D image size is the global work size. Work group size is the local work size.

http://www.ozone3d.net/gpu_caps_viewer/



You can think of the works values like intensity from Bitcoin. My computer shows no adverse effects with any combination of work values.
That's awesome. I'll have to use that tool to correctly set my cards tomorrow. One thing I noticed with Geforce mining is the CPU usage is much higher than with Radeon cards and while running other tasks I notice some slowdown and hitching which is not an issue on the Radeon systems. Perhaps it's just a Windows 10 thing with Geforce, not sure...
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
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I used this method. Though I have W10 Pro, so it might not work for you.
I'm also using Windows 10 Pro. I spent time tonight figuring out how to prevent Nvidia driver updates so hopefully this time it will stay put with the older driver. I wish I knew what part of the driver is causing the massive slowdowns so we could use a hybrid set.

Oh well maybe the devs will eventually adapt cuda mining to Windows 10 properly. We can't be the only ones wanting this.
 

Crono

Lifer
Aug 8, 2001
23,720
1,500
136
Got my R9 380s up and running.



Considering getting more cards - probably MSI this time because the price on the PowerColor went up - but I need to get another PSU and 3 more risers... can't remember where I got the risers I have (have 2, but need a USB 3.0 cable for the other one), but I think it was a seller off ebay.

Haven't done anything to the clock speeds or voltage (kill-a-watt showing draw of entire system under load/mining is hovering around 450W). I really need to get a copy of Windows for it to make it a lot easier to do so. Temps at 68-70C. Hashrate isn't bad:

 
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thilanliyan

Lifer
Jun 21, 2005
11,458
1,362
126
Mining with 2x290s at 1100/1250, stock voltage, the power usage is approximately 575w (from the wall) according to the Corsair AX1200i software. I'm getting 30MH/s per card.
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
Got my R9 380s up and running.



Considering getting more cards - probably MSI this time because the price on the PowerColor went up - but I need to get another PSU and 3 more risers... can't remember where I got the risers I have (have 2, but need a USB 3.0 cable for the other one), but I think it was a seller off ebay.

Haven't done anything to the clock speeds or voltage (kill-a-watt showing draw of entire system under load/mining is hovering around 450W). I really need to get a copy of Windows for it to make it a lot easier to do so. Temps at 68-70C. Hashrate isn't bad:

Nice speeds for default clocks. Looks like you should be able to get the rig up to 42Mh with a bit of overclocking. Do you know what memory type you ended up getting with those cards? Do they support voltage control?

Reading Newegg comments it looks like the MSI 380 cards support undervolting like the Sapphire units but here in Canada they cost the same and the Sapphire has the added backplate and ballbearing fans so I went for it instead.

Love the setup though, I'll probably have to do the same soon as it's much more efficient to run off one or two motherboards with a bunch of cards.

I wonder if those AsRock mining boards are still around...
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
Mining with 2x290s at 1100/1250, stock voltage, the power usage is approximately 575w (from the wall) according to the Corsair AX1200i software. I'm getting 30MH/s per card.
That's pretty good. I undervolted my two Fury X's last night and together am pushing approx 64Mh at 575W with a 1KW EVGA Platinum PS but I'm my idle wattage on this system is around 80W. Once I move them over to a more efficient system it should drop 30 watts give or take.

290/390's are much better value over the Fury's but if buying new I think the 4GB 380's are the best (21/22Mh once tweaked) for the price.
 

thilanliyan

Lifer
Jun 21, 2005
11,458
1,362
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That's pretty good. I undervolted my two Fury X's last night and together am pushing approx 64Mh at 575W with a 1KW EVGA Platinum PS but I'm my idle wattage on this system is around 80W. Once I move them over to a more efficient system it should drop 30 watts give or take.

290/390's are much better value over the Fury's but if buying new I think the 4GB 380's are the best (21/22Mh once tweaked) for the price.
What clocks are you using for your Furies (or is it Furys, lol)? I'd like to undervolt but 1100 core is not stable if I undervolt.
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
What clocks are you using for your Furies (or is it Furys, lol)? I'd like to undervolt but 1100 core is not stable if I undervolt.
I only experimented with the Fury's for 30 minutes or so last night but from memory using MSI Afterburner I set -30mv on the cores and -25 for the max power. Memory is clocked at 545 and GPU cores are set to 1100mhz. Anything below -25 for power delivery would cause drops on one of the cards from 1100Mhz down to 1025-1050 or so. I'm sure there's more room to tweak as I have both cards linked (one card will inevitably be better than the other) so I need to run them separately and and see where they end up.
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
FYI here's a screenshot of my pool mining stats.

https://imgur.com/Mf2xjzL

Miner1 = Fury's
Miner2 = 390
Miner3 = 970
Miner4 = 380

Of course these stats are rough approximations of speed but the last 6 hour results are roughly inline with what my console output shows.

Another MSI 390 is enroute and hopefully it arrives before the weekend so I can add it to the pool. This is where I stop though as the power costs really start to add up (even at 12 cents per KW).
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
5,869
1,267
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Whoever was getting 30 MH/s per 290, how did you get that? I have mine at stock clocks of 1030/1300 IIRC, and only get around 25 MH/s per card. Any special arguments or settings you use?
 

thilanliyan

Lifer
Jun 21, 2005
11,458
1,362
126
Whoever was getting 30 MH/s per 290, how did you get that? I have mine at stock clocks of 1030/1300 IIRC, and only get around 25 MH/s per card. Any special arguments or settings you use?
I am using the "--cl-local-work 256" and "--cl-global-work 8192" options in my bat file. Before those options I was only getting 28MH/s at 1100/1250. Clock speed made a fairly big difference for me. I think I went up maybe 4-5 MH/s by going from stock 947 to 1100 core.
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
5,869
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Hmm ok that might be helpful, and default clocks are 1000/1300. I will have to give those options and a bit of an OC a try :D
 

Erithan13

Senior member
Oct 25, 2015
218
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I am using the "--cl-local-work 256" and "--cl-global-work 8192" options in my bat file.
Cheers :) Got my hashrate up a little bit, now ~28MH/s at 1050mhz. Could probably push the clocks a bit higher but I bought the card used and I'm hesitant to run it above 80*C for such long periods.
 

thilanliyan

Lifer
Jun 21, 2005
11,458
1,362
126
Cheers :) Got my hashrate up a little bit, now ~28MH/s at 1050mhz. Could probably push the clocks a bit higher but I bought the card used and I'm hesitant to run it above 80*C for such long periods.
Yeah I wouldn't be running my cards at 1100 core if I wasn't watercooling :sneaky:
I got reference 290s, so I'd be deaf otherwise.
 

Crono

Lifer
Aug 8, 2001
23,720
1,500
136
Chrono, what is that PSU? Is it a custom modding case of some kind?
It's this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817148001

Not a lot of headroom to run 2 R9 380s by itself, but I have another 500W power supply running off the same ribbon (20+4 pin Y-cable/splitter) powering one of the cards. I usually don't have higher wattage PSUs laying around... getting at least a 750W soon, though.

It's a pretty nice looking PSU for the money. I'll probably put it in an acrylic case eventually with a UV light. Worker name for the mining rig is Medusa. :awe:
 
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metalliax

Member
Jan 20, 2014
119
2
81
I installed the new AMD 16.3 drivers today and noticed my 290x performance tanked with mining Ethereum. My Fury Nano didn't tank as badly. My combined was 45Mh/sec and after the update it was like 30Mh/sec. I reverted my drivers and now I'm back at 45.

Did anyone else try this?
 

EightySix Four

Diamond Member
Jul 17, 2004
5,121
49
91
Ended up with a 380 - wasn't quite ready to dive all in out of the gate. Able to drag ~20mh/s out of it with the benchmark, but the Suprnova dash reports 27mh/s. Not sure what's up with that.
 
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Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
5,869
1,267
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I am using the "--cl-local-work 256" and "--cl-global-work 8192" options in my bat file. Before those options I was only getting 28MH/s at 1100/1250. Clock speed made a fairly big difference for me. I think I went up maybe 4-5 MH/s by going from stock 947 to 1100 core.
Thanks, looks like those arguments are making a difference already.
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
5,869
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On side news I reflashed my launch blower powercolor 290 to 290X and started mining on it on the other comp. -19mv and 52% fanspeed, it still throttles a little, around 950 MHz. Getting about 26MH/s from it.
 

Despoiler

Golden Member
Nov 10, 2007
1,959
761
136
Installed the 16.3 AMD drivers this morning. Huge cut in hashrate with anyl global/local combination. 30 down to 25 at most. More like 16. Anyone else seeing this?
 

hawtdawg

Golden Member
Jun 4, 2005
1,223
7
81
Yes it works fine except Windows update for some reason keeps updating the damn driver even after explicitly turning off updates. Gotta figure out how to stop it and then all should be fine.

I'm using Etherium 0.9.41 release.
So, i tried to use those drivers, but they don't support 980ti's. So i tried the oldest driver that did with no luck. I'm confused, because i absolutely had my 980ti's mining at 21 m/hash apiece on windows 10, so i have no idea what changed. I also made sure windows 10 isn't auto-updating drivers.

I eventually gave up and installed ubuntu. I finally got it working, but that stuff is rocket-surgery to get set up.
 

crisium

Platinum Member
Aug 19, 2001
2,632
593
136
Installed the 16.3 AMD drivers this morning. Huge cut in hashrate with anyl global/local combination. 30 down to 25 at most. More like 16. Anyone else seeing this?
Have you set Power Efficiency to Off? If that doesn't help you may have to rollback.
 

metalliax

Member
Jan 20, 2014
119
2
81
Maybe the 16.3 and above driver is being set to make it so miners don't take all the new Polaris inventory... ;-)
 

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